Common logical fallacies used in advertisements include "appeal to authority," "bandwagon" and "appeal to emotions." Advertisers use these tactics to disguise illogical information by making it sound appealing and believable.
An appeal to authority uses a person who appears to have authority, such as a celebrity or an actor dressed as a medical professional, to make information seem more true. Bandwagon advertisements seek to lead people to believe that everyone is doing something or has bought a thing, so they should also to fit in. Advertisements using appeals to emotions attempt to overwhelm people with emotions to disguise misinformation or make people feel more attached to the product.